bundler errors

#gemfile
...
gem 'rails', github: 'matthewd/rails', :ref => 'e4c197c7698e2'
...

$ bundle update

The git source `git://github.com/matthewd/rails.git` uses the `git` protocol, which transmits data without encryption. Disable this warning with `bundle config git.allow_insecure true`, or switch to the `https` protocol to keep your data secure.
Fetching git://github.com/matthewd/rails.git
Fetching https://github.com/rossta/serviceworker-rails.git
Fetching gem metadata from https://rubygems.org/............
Fetching version metadata from https://rubygems.org/..
Fetching dependency metadata from https://rubygems.org/.
Resolving dependencies...........................................................................................................................................................................................................................................................................................................
Bundler could not find compatible versions for gem "actionpack":
  In Gemfile:
    rails-controller-testing was resolved to 0.1.0, which depends on
      actionpack (~> 5.x)

    rspec-rails (>= 3.5, ~> 3.5) was resolved to 3.5.0, which depends on
      railties (>= 3.0) was resolved to 4.2.8, which depends on
        actionpack (= 4.2.8)

    rspec-rails (>= 3.5, ~> 3.5) was resolved to 3.5.0, which depends on
      railties (>= 3.0) was resolved to 4.2.8, which depends on
        actionpack (= 4.2.8)

    rspec-rails (>= 3.5, ~> 3.5) was resolved to 3.5.0, which depends on
      actionpack (>= 3.0)

    sass-rails was resolved to 5.0.6, which depends on
      sprockets-rails (< 4.0, >= 2.0) was resolved to 3.2.0, which depends on
        actionpack (>= 4.0)

    sass-rails was resolved to 5.0.6, which depends on
      sprockets-rails (< 4.0, >= 2.0) was resolved to 3.2.0, which depends on
        actionpack (>= 4.0)

    twitter-bootstrap-rails was resolved to 3.2.2, which depends on
      actionpack (>= 3.1)
Bundler could not find compatible versions for gem "activesupport":
  In Gemfile:
    rspec-rails (>= 3.5, ~> 3.5) was resolved to 3.5.0, which depends on
      actionpack (>= 3.0) was resolved to 4.2.8, which depends on
        activesupport (= 4.2.8)

    rspec-rails (>= 3.5, ~> 3.5) was resolved to 3.5.0, which depends on
      actionpack (>= 3.0) was resolved to 4.2.8, which depends on
        activesupport (= 4.2.8)

    rspec-rails (>= 3.5, ~> 3.5) was resolved to 3.5.0, which depends on
      actionpack (>= 3.0) was resolved to 4.2.8, which depends on
        activesupport (= 4.2.8)

    rspec-rails (>= 3.5, ~> 3.5) was resolved to 3.5.0, which depends on
      actionpack (>= 3.0) was resolved to 4.2.8, which depends on
        activesupport (= 4.2.8)

    pg_search was resolved to 2.0.1, which depends on
      activerecord (>= 4.2) was resolved to 5.0.0, which depends on
        activesupport (= 5.0.0)

    bullet (= 5.0.0) was resolved to 5.0.0, which depends on
      activesupport (>= 3.0.0)

    bullet (= 5.0.0) was resolved to 5.0.0, which depends on
      activesupport (>= 3.0.0)

    exception_notification was resolved to 4.2.1, which depends on
      activesupport (< 6, >= 4.0)

    exception_notification was resolved to 4.2.1, which depends on
      actionmailer (< 6, >= 4.0) was resolved to 4.2.8, which depends on
        activejob (= 4.2.8) was resolved to 4.2.8, which depends on
          globalid (>= 0.3.0) was resolved to 0.3.7, which depends on
            activesupport (>= 4.1.0)

    exception_notification was resolved to 4.2.1, which depends on
      actionmailer (< 6, >= 4.0) was resolved to 4.2.8, which depends on
        activejob (= 4.2.8) was resolved to 4.2.8, which depends on
          globalid (>= 0.3.0) was resolved to 0.3.7, which depends on
            activesupport (>= 4.1.0)

    jbuilder (= 2.4.1) was resolved to 2.4.1, which depends on
      activesupport (< 5.1, >= 3.0.0)

    rspec-rails (>= 3.5, ~> 3.5) was resolved to 3.5.0, which depends on
      actionpack (>= 3.0) was resolved to 4.2.8, which depends on
rails-dom-testing (>= 1.0.5, ~> 1.0) was resolved to 1.0.8, which depends
on
rails-deprecated_sanitizer (>= 1.0.1) was resolved to 1.0.3, which
depends on
            activesupport (>= 4.2.0.alpha)

    rspec-rails (>= 3.5, ~> 3.5) was resolved to 3.5.0, which depends on
      actionpack (>= 3.0) was resolved to 4.2.8, which depends on
rails-dom-testing (>= 1.0.5, ~> 1.0) was resolved to 1.0.8, which depends
on
          activesupport (< 5.0, >= 4.2.0.beta)

    rails-erd was resolved to 1.5.0, which depends on
      activesupport (>= 3.2)

    rspec-rails (>= 3.5, ~> 3.5) was resolved to 3.5.0, which depends on
      activesupport (>= 3.0)

    spring was resolved to 2.0.1, which depends on
      activesupport (>= 4.2)

    spring was resolved to 2.0.1, which depends on
      activesupport (>= 4.2)

    bootstrap-editable-rails was resolved to 0.0.9, which depends on
      sass-rails was resolved to 5.0.6, which depends on
        sprockets-rails (< 4.0, >= 2.0) was resolved to 3.2.0, which depends on
          activesupport (>= 4.0)
Bundler could not find compatible versions for gem "rails":
  In Gemfile:
    rails

    health_check was resolved to 2.6.0, which depends on
      rails (>= 4.0)

    rails-controller-testing was resolved to 0.0.3, which depends on
      rails (>= 4.2)

    web-console was resolved to 0.1.0, which depends on
      rails (~> 4.0.0)

Could not find gem 'rails (~> 4.0.0)', which is required by gem 'web-console', in
any of the sources.Bundler could not find compatible versions for gem "railties":
  In Gemfile:
    coffee-rails was resolved to 4.2.1, which depends on
      railties (< 5.2.x, >= 4.0.0)

    devise was resolved to 4.2.1, which depends on
      railties (< 5.1, >= 4.1.0)

    factory_girl_rails was resolved to 4.8.0, which depends on
      railties (>= 3.0.0)

    responders (~> 2.0) was resolved to 2.3.0, which depends on
      railties (< 5.1, >= 4.2.0)

    rspec-rails (>= 3.5, ~> 3.5) was resolved to 3.5.0, which depends on
      railties (>= 3.0)

    sass-rails was resolved to 5.0.6, which depends on
      railties (< 6, >= 4.0.0)

    web-console was resolved to 1.0.1, which depends on
      railties (~> 4.0.0)